Malicious PDF — malware analysis report

Static analysis result for SHA-256 9903ffa54aaae862…

MALICIOUS

PDF

139.7 KB Created: 2020-08-21 01:14:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fea9eec515f31d8477807f7a90e5b2c2 SHA-1: 58719a065fe8faa68e4cfc7665310bdd134fb6b2 SHA-256: 9903ffa54aaae8620c2cccd40b365376a330a8607466605b37c1436d183032f8
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of external links, many of which point to a redirector service. The primary malicious URL, 'https://ttraff.cc/pify?keyword=amsterdam+map+pdf', is designed to redirect users to potentially harmful content. The document body, though heavily obfuscated, contains references to the malicious URL, reinforcing the lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.cc/pify?keyword=amsterdam+map+pdf In PDF document text
    • http://dujix.focusonyou-online.net/uploads/1/3/1/4/131453870/tatalapofexog.pdfIn PDF document text
    • http://files.lighthousepointplymouth.com/uploads/1/3/1/3/131398236/daviwetowodomaki.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4066/0891/files/rifudatezirezonogofutow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6237/6088/files/lagu_dj_better_half_of_me.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6481/1927/files/playboy_magazine_values.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2562/1404/files/cuisinart_dcc_1200_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3950/7100/files/35034730091.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4444/5092/files/epigenetica_y_cancer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0003/5485/files/top_10_android_cell_phones_2019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4184/8470/files/3d_in_powerpoint.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001e11b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1E11B 5144 bytes
SHA-256: 1fe6b2c3d9af0b7e2616d0175cfc939eae431ca4a7d644a6a372ed44c90a687b
font_01_sfnt_off0001f27f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1F27F 15244 bytes
SHA-256: 8d810b3da5ec26482add356fc683f4be286b49a4b07dc066c301120a3e74b6e3